A. A. J. Marley, a Fellow of the American Psychological Society, was Chair of the Department of Psychology at McGill University, Montréal from 1992 to 2001 (with a one-year sabbatical break in 1997), and is now Adjunct Professor at the University of Victoria and Professor Emeritus of McGill University. He has been editor of the Journal of Mathematical Psychology and President of the Society for Mathematical Psychology.